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1. 发明申请

US20220275234A1 Aqueous Ink-Jet Ink Composition 有权
公开(公告)号：US20220275234A1
公开(公告)日：2022-09-01
申请号：US17680532
申请日：2022-02-25
申请人： Seiko Epson Corporation
发明人： Manabu TANIGUCHI , Tomohito NAKANO , Tomoki MARUYAMA , Kiyomi KUMAMOTO , Jun ITO , Tetsuya AOYAMA , Satoshi TSUBAMOTO , Masahiro YATAKE , Yukiko Il
IPC分类号： C09D11/38 , C09D11/322 , C09D11/033 , C09D11/037 , C09D11/102 , C09D11/107 , C09D11/023
摘要： An aqueous ink-jet ink composition according to the present disclosure contains pigment, water, resin particles, 1-(2-hydroxyethyl)-2-pyrrolidone, and trimethylglycine. The mass-based content of the resin particles is lower than the mass-based content of the pigment.

2. 发明申请

US20210095149A1 INK JET RECORDING APPARATUS, INK JET RECORDING METHOD, AND INK COMPOSITION 有权
公开(公告)号：US20210095149A1
公开(公告)日：2021-04-01
申请号：US17035940
申请日：2020-09-29
申请人： Seiko Epson Corporation
发明人： Kiyomi KUMAMOTO , Yusuke MIZUTAKI , Jun ITO , Tomohiro ARUGA , Tomoki MARUYAMA
IPC分类号： C09D11/328 , B41J2/195
摘要： An ink jet recording apparatus includes an ink composition, an ink encasement in which the ink composition is encased, a recording head that ejects the ink composition, and a carriage configured to move the recording head back and forth. The carriage carries the ink encasement, with the ink encasement integrated with the carriage. The ink encasement has an ink fill port that opens and shuts as a port through which the ink composition is loaded. The ink composition contains a disperse colorant, with the volume-average particle diameter of the disperse colorant being 105.0 nm or less.

3. 发明申请

US20210095146A1 INK JET RECORDING APPARATUS, INK JET RECORDING METHOD, AND INK COMPOSITION 有权
公开(公告)号：US20210095146A1
公开(公告)日：2021-04-01
申请号：US17035965
申请日：2020-09-29
申请人： Seiko Epson Corporation
发明人： Tomoki MARUYAMA , Yusuke MIZUTAKI , Tomohiro ARUGA , Kiyomi KUMAMOTO , Jun ITO
IPC分类号： C09D11/322 , B41J2/175 , B41J2/21 , C09D11/40 , B41J2/14
摘要： An ink jet recording apparatus includes an ink composition, an ink encasement in which the ink composition is encased, a recording head that ejects the ink composition, and a carriage configured to move the recording head back and forth. The carriage carries the ink encasement, with the ink encasement integrated with the carriage. The ink encasement has an ink fill port that opens and shuts as a port through which the ink composition is loaded. The ink composition contains a water-soluble dye and a polyhydric alcohol with a normal boiling point of 270° C. or above, with the percentage of the polyhydric alcohol being 26.0% by mass or less of the total amount of the ink composition.

4. 发明申请

US20220275233A1 Ink Jet Ink Composition And Recording Method 有权
公开(公告)号：US20220275233A1
公开(公告)日：2022-09-01
申请号：US17680394
申请日：2022-02-25
申请人： Seiko Epson Corporation
发明人： Kiyomi KUMAMOTO , Tomohito NAKANO , Tomoki MARUYAMA , Manabu TANIGUCHI
IPC分类号： C09D11/328 , C09D11/033 , B41M5/00
摘要： An ink jet ink composition of the present disclosure includes a coloring material, water, an acetylene glycol-based surfactant having a HLB value of 4 or less, and 1-(2-hydroxyethyl)-2-pyrrolidone. The content of 1-(2-hydroxyethyl)-2-pyrrolidone in the ink jet ink composition is 0.5% by mass or more and 5.0% by mass or less.

5. 发明申请

US20210094333A1 INK JET RECORDING APPARATUS, INK JET RECORDING METHOD, AND INK COMPOSITION 有权
公开(公告)号：US20210094333A1
公开(公告)日：2021-04-01
申请号：US17035988
申请日：2020-09-29
申请人： Seiko Epson Corporation
发明人： Tomohiro ARUGA , Jun ITO , Kiyomi KUMAMOTO , Tomoki MARUYAMA , Yusuke MIZUTAKI
IPC分类号： B41M5/00 , C09D11/102 , C09D11/38 , C09D11/328 , B41J2/175
摘要： An ink jet recording apparatus includes an ink composition, an ink encasement in which the ink composition is encased, a recording head that ejects the ink composition, and a carriage configured to move the recording head back and forth. The carriage carries the ink encasement, with the ink encasement integrated with the carriage. The ink encasement has an ink fill port that opens and shuts as a port through which the ink composition is loaded and also has a detector that detects the amount of ink composition encased. The ink composition contains a surfactant with an HLB of 6 or less.

6. 发明申请

US20220380616A1 Ink Jet Ink Composition And Ink Set 有权
公开(公告)号：US20220380616A1
公开(公告)日：2022-12-01
申请号：US17750513
申请日：2022-05-23
申请人： Seiko Epson Corporation
发明人： Tetsuya AOYAMA , Satoshi TSUBAMOTO , Masahiro YATAKE , Tomohito NAKANO , Tomoki MARUYAMA
IPC分类号： C09D11/40 , C09D11/322 , C09D11/38 , C09D11/326 , C09D11/037 , C09D11/033 , C09D11/107
摘要： An ink jet ink composition includes: an acetoacetanilide-based monoazo pigment coated with a water-insoluble polymer; 1-(2-hydroxyethyl)-2-pyrrolidone; and water.

7. 发明申请

US20220098430A1 Ink Set 有权
公开(公告)号：US20220098430A1
公开(公告)日：2022-03-31
申请号：US17488670
申请日：2021-09-29
申请人： Seiko Epson Corporation
发明人： Tomoki MARUYAMA , Yusuke MIZUTAKI
IPC分类号： C09D11/40 , C09D11/328 , C09D11/033 , C08K5/053
摘要： An ink set includes a process color ink set including a yellow ink, a magenta ink, a cyan ink, and a black ink as process color inks, and a light ink having a color similar to a corresponding one of the process color inks in the process color ink set. The yellow ink has a maximum absorption wavelength in a range from 350 nm to 480 nm, the magenta ink has a maximum absorption wavelength in a range from 510 nm to 560 nm, the cyan ink has a maximum absorption wavelength in a range from 580 nm to 700 nm, a full width at half maximum of a peak including the maximum absorption wavelength of the yellow ink is in a range from 85 nm to 100 nm, a full width at half maximum of a peak including the maximum absorption wavelength of the magenta ink is in a range from 85 nm to 100 nm, a full width at half maximum of a peak including the maximum absorption wavelength of the cyan ink is in a range from 118 nm to 165 nm. A maximum absorbance in a visible light wavelength range of the light ink is 70% or less of a maximum absorbance in the visible light wavelength range of the corresponding one of the process color inks.

8. 发明申请

US20210095150A1 INK JET RECORDING APPARATUS, INK JET RECORDING METHOD, AND AQUEOUS INK COMPOSITION 有权
公开(公告)号：US20210095150A1
公开(公告)日：2021-04-01
申请号：US17036012
申请日：2020-09-29
申请人： Seiko Epson Corporation
发明人： Yusuke MIZUTAKI , Kiyomi KUMAMOTO , Tomohiro ARUGA , Jun ITO , Tomoki MARUYAMA , Yasunori KOIKE
IPC分类号： C09D11/328 , B41J2/175 , C09D11/40
摘要： An ink jet recording apparatus includes at least one aqueous ink composition, at least one ink encasement in which the aqueous ink composition is encased, a recording head that ejects the aqueous ink composition, and a carriage configured to move the ink encasement and the recording head back and forth. The carriage carries the ink encasement, with the ink encasement integrated with the carriage. The ink encasement has an ink fill port that opens and shuts as a port through which the aqueous ink composition is loaded, and the maximum external length of the ink encasement in the direction parallel with the direction in which the carriage moves back and forth is 30.0 mm or less.

9. 发明申请

US20220275232A1 Aqueous Ink Jet Ink Composition And Ink Jet Recording Method 有权
公开(公告)号：US20220275232A1
公开(公告)日：2022-09-01
申请号：US17680426
申请日：2022-02-25
申请人： Seiko Epson Corporation
发明人： Tomohito NAKANO , Tomoki MARUYAMA , Kiyomi KUMAMOTO , Manabu TANIGUCHI
IPC分类号： C09D11/322 , C09D11/033 , C09D11/102 , C08K5/053 , C08K5/3415
摘要： An aqueous ink jet ink composition contains a color material, water, 1-(2-hydroxyethyl)-2-pyrrolidone, and a 1,2-alkanediol. The mass ratio of the content of the 1-(2-hydroxyethyl)-2-pyrrolidone and that of the 1,2-alkanediol is 1:10 to 10:1.

10. 发明申请

US20220275231A1 Aqueous Ink Jet Ink Composition, Ink Jet Recording Method, and Ink Jet Recording Apparatus 有权
公开(公告)号：US20220275231A1
公开(公告)日：2022-09-01
申请号：US17680384
申请日：2022-02-25
申请人： Seiko Epson Corporation
发明人： Tomoki MARUYAMA , Tetsuya AOYAMA , Masahiro YATAKE , Satoshi TSUBAMOTO
IPC分类号： C09D11/322 , C09D11/033 , C08K5/3415 , C08K5/053 , B41J2/175
摘要： An aqueous ink jet ink composition contains a color material, water, a polyhydric alcohol having a standard boiling point of 270.0° C. or more, and 1-(2-hydroxyethyl)-2-pyrrolidone. The mass ratio of the content of the polyhydric alcohol to that of 1-(2-hydroxyethyl)-2-pyrrolidone is 3.1 or more and 7.0 or less.

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